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Qtractor 0.6.7 - The Lepton Acid beta release!

It's alive!

Qtractor 0.6.7 (lepton acid beta) is out!

Release highlights:

  • MIDI instrument rendering on audio export (NEW)
  • MIDI clip editor view/event criteria persistence (NEW)
  • MIDI clip editor resilience on record/overdub (FIX)
  • Generic plugin form position persistence (NEW)
  • JACK Transport/Timebase master option (NEW)
  • and yet more tiny lurking critters swatted ;)

Well, the major highlight to this release is in fact this brand new and way long overdue feature, seamlessly integrated to the faithful and regular audio track export function: MIDI track instrument plug-in rendering and mix-down (aka. freeze) is now real, as long their audio output goes onto selected buses, aka. stems, mix-groups, whatever a mix/mastering head would name it! nb. on the (very exquisite) Qtractor arch-model parlance, those are just called "audio output buses" and that ain't gonna change, any time soon, so stop it! A word of caution must be told by now: dedicated (JACK) audio output ports are off-the-grid, so sorry.

Maybe this silently makes a notch towards the DAW epitome, though Qtractor still claims to be just a plain and honest sequencer--with yet another DAW-like feature addition--the same as it ever was.

Nuff said.

Vee One Suite 0.6.3 - A sixth beta release

As a micro dot release override, the current sixth beta release is out and crunching the earlier fifth to oblivion ;)


The Vee One Suite of old-school software instruments, aka. the gang of three have bumped over another tiny notch: synthv1, as one polyphonic synthesizer, samplv1, a polyphonic sampler and drumkv1, as one drum-kit sampler, are now being released to the masses. Again ;)

There's no big audible changes, if any at all, yet this sixth beta release is rather a probable bug fix for drumkv1 LV2 on Ardour (v3 and v4).

Anyway, it's all gone as follows:

  • Sample file drag-and-drop support has been added to the note element list widget (drumkv1 only).
  • Main widget layout changed as much to allow sampler display and element list to expand or grow vertically as needed (samplv1 and drumkv1).
  • Sample file path mapping has been fixed for LV2 plugin state restoration, which were preventing Ardour to reload any of the saved session or preset sample files in particular (re. drumkv1 only).
  • Custom knob/dial behavior mode options are now introduced: linear and angular (aka. radial) as far to avoid abrupt changes on first mouse click (still the default behavior).
  • Fixed for some strict tests for Qt4 vs. Qt5 configure builds.

We're still available in dual form, as business as usual:

  • a pure stand-alone JACK client with JACK-session, NSM (Non Session management) and both JACK MIDI and ALSA MIDI input support;
  • a LV2 instrument plug-in.

Enough to tell, the Vee One Suite are free and open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

As always, have (lots of) fun :)

Qtractor 0.6.6 - The Lazy Tachyon is out!

And finally, for the wrap of the pre-LAC2015@JGU-Mainz release party, no other than the crown jewel of the whole Qstuff bunch ;)

Qtractor 0.6.6 (lazy tachyon beta) is out!

Release highlights:

  • LV2 and VST plugins GUI position persistence (NEW)
  • MIDI clip editor record/overdub note rendering (FIX)
  • VST plugin recursive discovery/search path (NEW)
  • VST-shell sub-plugins support (FIX)
  • also some old and new lurking bugs squashed.

Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt4 framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio and the Advanced Linux Sound Architecture (ALSA) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.

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QmidiNet 0.2.1, QmidiCtl 0.2.0 released!

The pre-LAC2015 pre-season has just been started!

Here goes the first batch... ;)

QmidiNet - A MIDI Network Gateway via UDP/IP Multicast

QmidiNet 0.2.1 released!

QmidiNet is a MIDI network gateway application that sends and receives MIDI data (ALSA-MIDI and JACK-MIDI) over the network, using UDP/IP multicast. Inspired by multimidicast and designed to be compatible with ipMIDI for Windows.


Project page:


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QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast

QmidiCtl 0.2.0 released!

QmidiCtl is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast ( and designed to be compatible with ipMIDI for Windows ( QmidiCtl has been primarily designed for the Maemo enabled handheld devices, namely the Nokia N900 and also being promoted to the Maemo Package repositories. Nevertheless, QmidiCtl may still be found effective as a regular desktop application as well.


Project page:


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  • Reset (to network defaults) button added to options dialog, which also gets some layout reform.
  • Added application description as's AppData.
  • Previously hard-coded UDP/IP multicast address ( is now an user configurable option.
  • A man page has beed added. (QmidiCtl backlog)
  • Allow the build system to include an user specified LDFLAGS. (QmidiCtl backlog)


Both QmidiNet and QmidiCtl are free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Cheers && Enjoy!


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